Yarn-selecting mechanism for tufted-fabric looms.



No. 882,455. PATENTED MAR 17, 1908. J. K. DALKRANIAN. YARN SELECTINGMECHANISM FOR TUPTBD FABRIC LOOMS.

APPLICATION FILED APR. 19. 1905.

E 4 SHEETS-SHEET l.

WITNESSES:

ATTORNEYS No. 882,455. 4 PATENTBD MAR. 17, 1908.

J. K. DALKRANIAN.

YARN SELECTING MECHANISM FOR TUPTED FABRIC LOUMS.

APPLICATION FILED APR.19. 1905.

4 SHBETSSHEET 2.

WITNESSES.- l/VVE/VTOR I ATTORIVE No. 882,455. PATENTED MAR. 17, 1908.J. K. DALKRANIAN.

YARN SELECTING MECHANISM FOR TUPTED FABRIC LOOMS.

APPLICATION FILED APR.19. 1905.

4 SHEETS-SHEET 3.

W 1r" F W7 o o c Q a Q Li .1 l i i A 0 J WITNESSES: INVENTOR I W m b eames fiiuwzz'fiaZ/uranzkzw M fly I a ATTORNEYS No. 882,455. PATENTBDMAR. '17, 1908.

J. K. DALKRANIAN.

YARN SELECTING MECHANISM FOR TUFTED FABRIC LO'OMS.

APPLICATION FILED APR. 19. 1905.

4 SHEETS-SHEET 4.

INVENTOR (76277266 nziJaZkra/zz'm ATTORNEYS STATES Janus KARMIDALKRANIAN, or NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTQLTO PA ENTOFFICE.

UNITED STATES PERSIAN CARPET COMPANYyOF N EW- YORK,;N. Y., A CORPORATIONOF NEW YORK.

I YARN-SELECTING MECHANISM FOR TD'FTED-FQAB RIC LQOMS.

No. senate.

Specification of LettermPatent.

Patented March 17, 1908.

p Application filed April 19,1905. Serial No. 256,386.

To all it may concern: Be it known that 1, JAMES mums, a citizen of theUnited States, and

a. resident of the city of New York, borough of the Bronx, in the countyandState of New York, have invented a new and Improved Yarn-SelectingMechanism for Tufted-Fabric Looms, of which the following is a full,clear, and exact description. I

The invention relates to looms for weaving Axminster and other car ets,oriental ru s and like fabrics, andits o ject is to provi ea new andimproved yarn-selecting mechanism arranged to brin any desired coloredarns into position to be used as pile threads or roducing a pile face ofany desired and pre etermined pattern.

' The invention consists of novel features and parts and combinations ofthe same,

.which will be more fully described hereinafter and pointed out in theclaims. I a A practical embodiment of the invention is represented inthe accompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corv res nding parts in all theviews.

- igure 1 is a side elevation of the improvecarriers, the tuft yarntubes and the transfen-ing device for carrying a set of tuft yarn tubesto, operative position, parts being i shown in section; Fig. 4 is a likeview of the same showin tached from t etuft yarn tube supports Fig.

5 is an enlarged sectional side e a set of tuft yarn tubes d'eevation ofthe improvement; Fig. 6 is a plan view of the tuft yarn tube supports;Fig. 7 is anensition and back to t e tuft yarn tube sup larged sideelevation of the transferring device for carrying a set of tuft yarntubes from the tuft yarn tube su ports to,operative poports; Fig. 8 is asectional side elevation of the same; -Fig.9 is a plan view of the same;

Fig. 10 is a cross section of the same; and

Fig. 11 is an enlarged perspective view of one of the tuft yarn tubes.

The arn-sel'ecting mechanism is shown as applie to a loom A forproducing oriental fabrics,- and the said loom is similar to. the

one shownand described in Letters Patent No. 858,962 granted to me July2, 1907, but

it is expressly understood that I do not limit KARMI DAL- main frame A,and the said ground warp threads at, a extend from the warp beamforwardly over a tension-rod A, then through theheddles A, A, andfinally to the fabric (1 passing over a breast-beam A arranged on thefront end of the main frame A. The weft threads are assed throu h theopen shed of thegroun warp threa s a, a by a suitable shuttle mechanismA andthe pile threads I) are interloo ed with the ground warp threads a,a. b i t e use of a-looper A, and the said roun warp threads a, a areperiodically s o ged by a shogging device A, and the pile t reads andthe'weft'threads are beaten up by a lay A", all as more fully describedin the patent above referred to, so that further description of thedetailed construction of the loom A is not deemed necessary.

The pile threads I; extend through tuft yarn tubes B, .then.ov.erlongitudinally-exftending guide-rods C mounted on the main frame A, andthe said pilethreads b unwind from bobbins D held on a rack E attachedto the main frame A, as plainly illustrated a in Fi 2. A proper tensionis given to the pile t reads b'by weights F connected with the pilethreads at oints between the bob- .p ins D' and the guid -rods C, asindicated in -i L2.

Fach of the tuft yarn tubes B is arranged for the assage of a sin lepile thread band is provi ed with a head (see Fig. 11), having, onopposite sides, two sets-0f notches B? and B of which the set of notchesB is adapted to be engaged b the V-shaped spring ends of a retainer (isecured to the under side of a tuft yarn tube supportH- arranged in theform of a longitudinally-exten ing beam mounted-to slide in suitablebearings A formed on the main frame A. The several tuft yarn tubesupports H are arranged one alongside the other, as plainly indicated inFig. 6, and each'tuft arntube support is adapted to support a p uralityof tu t yarn tubes B by a rorrespondmg number v H is pivotally connectedby a link H with the vertical member I of a bell crank lever I, and theseveral bell crank levers I are fulcrumed on a transversely-extendin rod1 attached to the mainframe A. T e horizontal member I of each bellcrank lever I- is connected at different points throughout its lengthwith a set of cords or wires J extending upwardly and connecting withthe lower ends of 'the'lifting-hooks K of a jacquard mechanism K of anyapproved construction and preferably mounted on the upper end of themain frame A. The upper hooked ends of the lifting-hooks K are.

adapted to hook-over the transversely-extending lifting-bars K of thelifting-frame K adapted to be periodically raised and lowlereddn theusual manner. I The lifting hooks 'K are adapted to be moved in and outof engagement with the lifting-bars K by the usual needles K controlledby the card K of the endless pattern chain passing over the usualpolygonal cylinder K. A return movement of the bell crank levers andconnected parts is had by weights I hung on the horizontal members I ofthe bell cranklevers, as illustrated in the drawings.

By reference to Fig. 1 it will be seen that each set of ropes or wires Jis connected with a correspondingset of lifting hooks K, and at everyraise of the lifting frame K one of the lifting hooks K of each set is,by the action of the corresponding needle K and card K moved inengagement with the corresponding lifting bar K so that the thus engagedlifting hooks of the several sets are raised and, by the correspondingropes .or wires J, impart a swinging motion to the arms I of the bellcrank levers I, to shift the tuft yarn tube supportsH correspondingdistances from the right to the left. The connections betweena set ofropes or wires J with the member I of a bell crank lever I are ar rangedin geometrical progression, as will be readily understood by referenceto Fig. 1,

the arrangement being such that the tuft yarn tube support H is shiftedeither a distance- .between two adjacent hollow tuft yarn tubesalinement, and the tuft yarn tubes so alined form a set of selected-tuftyarn tubes and this set contains but one tuft yarn tube from eachsupport and the set extends at a point for convenient transferring tocarry the selected gripping jaws L and L are adapted to engagethelowermost set of notches B in the heads B of the alined tuft yarntubes B (see Fig. 9), and the said gripping jaws L and L are pressedtoward each other by springs L so as to hold the gripping jaws in firmengagement with the corresponding sets' of notches B The gripping jaws Land L are fulcrumedat L? and L in heads L hung on swing-arms L and L, ofwhich the swingarms L are fulcrumed at L (see Fig. 1) on the main frameA, and the swingarms L are connected by links N with levers N actuatedby cams on one of the shafts of the loom A so as to periodically impartthe desired swinging motionto the swing-arms L The swing-arms L arepivotally connected at their rear. ends with levers L connected by linksl -with levers N likewise engaged by cams on one of the shafts of theloom A-so that the arms L swing the heads L into Lhe proper position atthe time of engaging the jaws L, L with theh'eads B on the alined tuftyarn tubes and to hold the tuft yarn tubes carried down to the fabric inthe pile-knot, as vdescribed in the application above referred to. I

Tn order to engage the gripping'jaws L and L with the heads B of thealined tuft yarn tubes B, it is necessary to first swing the jaws L andL into an open position, for conveniently engaging the jaws withopposite sides of the head B, as will be readily understood by referenceto Fig. 3. For this purpose the lower wedge-shaped ends of bars 0 areadapted to pass between the gripping proper position during theformation of the j jaws L and L to swingthe same open, and

the bars 0 are mounted toislide up and down in bearings A formed on themain frame A. 1

The upper ends of the bars), of which. there are preferably two, areconnected with each other by a cross-rod 0 extending through anelongated slot in a lever fulcruined on the main frame'A and connectedby a-link .O and other mechanism with a suitable cam attached to one ofthe shafts of the loom A so that the -bars O descend and rise at theproper time to first open the jaws L and L and then to allow the jaws toclose bythe action y of their springs L for the jaws to engage the lowerset of notches B on the heads B of the alined tuft yarn tubes. When thishasbeen done a downward swingin' motion is given to the arms L, L, andin oing so the heads B of the alined tuft yarn tubes B are pulled out ofengagement with the free ends of the retainers G (Fig, 4), andconsequently the alined-tuft yarn tubes are carried by the transferringdevice from the supports H cut off, then the transferring device returnsthe It is understood that when the alined tuft endof the head B. Thefree curved en the-spring B clamps the ile thread for this? tuft yarn,tube. againstt e wallBf-of the, notch'B, so that when the tuft yarn tubeBI is'carrieddownward the pile threadgisheldp, in position on the tuftyarn tube, and conSedown to the fabric to bring" the projecting ends ofthe pile threads of this set of alined. tuft yarn tubes within reachofthe looper. A for forming the loops 'on the .crossed ground warp. t

application above referred to.

yarn tubes Bare carried-downward from the 7 supports H the pile threadsI) are ca'used'to unwind 'on their bobbins D as eachl 'pi-le'l thread I)is clamped in its tuft yarn tube B by.

a suitable clampinggdevice, 1preferably in-the form of a spring 4 (seeig. 10) andfse v cured to the top of the head B, the free-end} of thesprin a notch B orm'e transversely in the updp quently the pile threadis'caused to'unwind from the corresponding bobbin D After portions ofthe pile threads of the alined tuft I yarn tubes'have beenused forforming the,

nots and the ends of the knots have been the alined tuft yarn tubes backto the su ports H and the corres onding retainers after which the bars 0escend to again open the gripping jaws L and L to disengage the samefrom the heads B and to allow the gripping jaws to swing downward ashort distance into a dormant position and out of the path of thetuftyarn tubes B, until another shifting of the supports I-I'is made for thenext operation. h

The operation isas follows: In-fixing the loom, the several tuft yarntubes of a single support Hgar'e threaded with yarns of differentcolors,and-when the loom is in operationv the supports H are shifted thedesired distances to bri such pile threads of the different supports-lfil into transverse alinement as is required for forming a set ofpiles selected according to a predetermined pattern, the selected tuftyarn tubes and their pile threads being then carried down by thetransferring device to the fabric,-and the selected pile threads arethen en aged by the knot-forming mechanisms of t e loom, after which'theoperation. time the transferring reads a, a, as mentioned in gbeincurved and extended into ii er scribe f of ends of the knots formed arecut off by a suitable cutting device P (see Fig. 1), and then thetransferring device returns the selected tuft yarn tubes back to theretainers G of the corresponding tuft yarn tube-supports H,-

after which the transferring device disengages the tuft yarn tubes andmoves into a dormant position out of the path of the'tu ft yarn tubes toallow the jacquard mechanism to again shift the supports H for the nextIt is understood that durin the device L takes hold of the alined tuftyarn tubes and carries the sa'medown and back, as described, thelifting-frame K of the jaciiuard remains in an uppermost position totubesupports H against movement, and the saidlifting-frame K only movesdown into a :ldwrmost position after the transferring dewen has left thetuft yarn tubes and moved 'finto thcrdormant position above mentioned.

Whenl the lifting-frame K moves downward,

I act on the bell crank levers I to ireturngthe same, and consequentlythe supportsill, to a normal rearmo'st position, until thejacquardmechanism again actuates the bell crankf'levers for the next pick, asabove described. -.Thus, by the arrangement dey desired combination ofthe pile .o-threddsldan'be made to produce a pile face in ,ariyfldesiredpattern and color and without the use of very cumbersome devices, suchas I heretofore used in the weaving of Axminster carpets and otherfabrics. It is understood that the several mechanisms described forproducing the desired result operate in unison and are driven from themain shaft of theloom, and as the means for actuating the severalmechanisms from the main shaft may be of any approved construction, itis not deemed necessary to further'illustrate or describe the same.

I do not limit myself to any detailed construction of any one of theseveral mechanisms employed for producing the desired result, as thesame may be varied without deviating from the invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

-1." A yarn-selecting mechanism provided with a plurality of movable,tuft yarn tube-- supports arranged side by side, and a plurals ity oftuft yarn tubes detachably held'on each support and spaced from eachother in the direction of the line of movement of the sup-,

' tuft yarn tubes detachably held on each support and spaced from eachother in the direction of the line of movement of the supports, andmeans for shifting the said supports iridependent one of the other.

6. A yarn-selecting mechanism provided with a plurality of movable tuftyarn tubesupports arranged side by side, a plurality of tuft yarn tubesdetachably held on each sup- .port and spaced from each other in thedirec tion of the line of' movement of the supports, and means forshifting the said supports independent one of the other and desireddistances to bring any desired set of tuft yarn tubes. into transversealinement.'

7. -A yarn-selecting mechanism provided with a plurality of movable tuftyarn tubesupports arranged side by side, a plurality of tuft yarn tubesdetachablyheld on each sup port and spaced from each other in thedirection of the line of movement of the supports, and alining means forshifting the'said tuft yarn tube supports in the direction of theirlength to bringany desired combination of tuft yarn tubes intotransverse alinement.

8. A yarnselecting mechanism provided with a plurality of movablesupports, a plurality of tuft yarn tubes detachablyheld on each supportand ranging in the direction of the movement of the said supports, andalining means for each support to shift the same any desired distance tobring a tuft yarn tube from each support into active position, theseveral tuft yarntubes In active position forming adesired combinationof tuft yarn tubes according to a predetermined design.

9. A yarn-selecting mechanism provided with a plurality of movablesupports, a plurality of tuft yarn tubes detachably held on each supportand rangin in the direction of the movement of the sai supports,graduatedshifting-levers, one foneach support,

- v and a jacquard mechanism for actuating the shifting-levers. v v

10; A yarn-selecting mechanism provided with a plurality of movablesupports, a plurality of tuft yarntubes detachably held on each supportand ranging in the direction of the movement of the said supports, bellcrank levers connected with the said supports, and a jacquard mechanismhaving a plurality of connections with each bell crank .lever.

i 11 yarn-selecting mechanism provided with a pluralityv of movablesupports, a

plurality of tuft yarn tubes detachably held on each support and ranging1n the direction of the movement of the said supports, bell crank leversconnected with the said sup-- ports, and a jacquard mechanism having aplurality of connections with each bell crank carrying a plurality ofdetachable yarn carriers, and means connectlng the said acquardmechanism with the said supports for shifting the latter according to ageometrical progression.

13. In a loom, the combination of a,jacquard mechanism, movablesupports, each carrying a plurality of detachable yarn carriers, andmeans connected withthe said jacquard mechanism and the said supportsfor shifting the latter according to a geometrical rogression, to form aset of detachable seected yarn carriers.

14. In a loom, the combination of a jacquard mechanism, movablesupports, each carrying a plurality of detachable yarn carriers, meansconnected with the said jacquard mechanism and the said supports forshifting the latter according to a geometrical progression, to form aset ofdetachable' selected yarn carriers, and a transferring device forbodily transferring the selected yarn carriers to the cloth-makingpoint.

15. A yarn-selecting mechanism provided 'with a plurality of movabletuft yarn tubesupports, a jacquard mechanism for impartmg movement-tothe said supports, a plurality of detachable tuft yarn tubes on each ofthe said supports, and a transferring device for engaging a set ofalined tuft yarn tubes to move the same from the supports to activeposition and back to the said supports.

16, Ayarn-selecting mechanism provided with a plurality of movable/tuftyarn tubesupports, a jacquard mechanism for imparting movement to thesaid'supports, a plural ity of detachable tuft yarn tubes on each of thesaid supports, a transferring device for engaging a set of alined tuftyarn tubes to move the same from the supports to active position andback to the said supports, and an opening and closing device for thesaidtransferring device to connect and disconnect the said transferringdevice and the said tuft yarn tube.

17. A yarn-selecting mechanism provided,

with a tuft yarn tub'e support having a pair of spring arms, a tuft yarntube adapted to be supported in the said arms,-a transferring devicehaving a pair of spring-pressed gripping jaws adapted to engage the saidtuft yarn tube, and means for opening the said jaws and releasing thesame.

18. A yarn-selecting mechanism provided with a tuft yarn tube-supporthaving a pair of spring arms, a tuft yarn tube adapted to be supported1n the said arms, a transferring device (will prising swinging levers,heads carried b the said levers, gripping jaws mounted to turn in thesaid heads and adapted to engage the said tut't yarn tube and wedgesadapted to pass between the said jaws to swing the same into an openposition.

H). A yarn-selecting mechanism provided with a tult yarn tube-supporthaving a pair of spring arms, a tutti yarn tube adapted to be supportedin the said arms, a transferring device comprising swinging levers,heads carried by the said levers, gripping jaws mounted to turn in thesaid heads and adaptedto engage the said needle, wedges adapted to passbetween the said jaws to swing the same into an open position, andsprings con necting the jaws with each other for closing the same onremoval of the said wedges.

20. A yarn-selecting mechanism provided with a shank, a head having setsof notches, supporting arms for engaging one set of notches, andgripping jaws for engaging the other set of notches.

21. A yarn-selecting mechanism provided with yarn-carriers, means forselecting from the same to form a set of selected yarncarriers, and atransferring device for bodily transferring the set of selectedyarn-carriers.

22. A loom provided with yarn-selecting mechanism having yarn-carriers,means for selecting from the yarn-carriers to form a set of selected arncarriers, and means for bodily transierringthe said set of selectedyarn-carriers.

A 23. A loom provided'with yarn-carriers, slidable supports for thesame, and means for shifting the said supports to form a set of selectedyarn-carriers.

24. A loom provided with yarn-carriers, slidable supports for the same,means for shifting the said supports to form a set of selectedyarn-carriers, and means for bodily removing the said set of selectedyarn-carriers from the said supports.

25. A loom provided with yarn-carriers, sup orts for the same, means forshifting the Sit1( supports to form a set of selected yarncarriers,means for bodily removing the said set of selected yarn-carriers fromthe said supports and returning the said yarn-carriers to the supports,and means for holding the supports in the selected position during theremoval and return of the said set of selected yarn-carriers.

26. A loom provided with yarn-carriers, means for selecting a number ofthe said yarn-carriers to form a set of selected yarncarriers, and meansfor bodily removing the set of selected yarn-carriers.

27. A loom provided with yarn-carriers,

shiftable supports having retainers for detachably supporting the saidyarn-carriers, and selecting means for shifting the said supports toform a set of selected yarn-carriers. 28. A loom provided withyarn-carriers, shiftable supports having retainers for detachablysupporting the said yarn carriers, selecting means for shifting the saidsupports to form a set of selected yarn-carriers, and means for bodilyremoving the said set of selected yarn-carriers from their retainers.

29. A loom provided with yarn-carriers, shiftable supports havingretainers for detachably supporting the said yarn-carriers, selectingmeans for shifting the said supports to form a set of selectedyarn-carriers, engaging means for engaging the said set of selectedyarn-carriers, and mechanism for the said engaging means to move thelatter to and from the said supports.

In testimony whereof I have signed my name to this specification 1n thepresence of two subscribing witnesses.

